Bond Brain Training Puzzles provide fun challenges that entertain and stretch young minds, and are a great way to build the skills required for the 11+ and other school entrance exams. Number Puzzles has been designed by Bond to develop children's abilities with numbers through problem-solving. Key features include:#8226 Packed with over 100 puzzles #8226 Puzzles broken up into Warm-up, Intermediate and Tricky levels so children can take on the challenge that suits them best#8226 Builds essential logic and reasoning skills in alignment with the national school curriculum, and core SATS and 11+ exam skills#8226 Perfect for covert learning.